Du jour is a French term that refers to something that is popular or in fashion at a particular time. Synonyms for du jour could include trending, popular, in vogue, fashionable, en vogue, current, in demand, and hot. Each of these synonyms emphasizes a different aspect of the concept of something being popular at a particular time. Trending emphasizes that something is highly talked about and getting a lot of attention, while popular focuses on the fact that a lot of people are interested in it. In vogue and fashionable both suggest that something is stylish and on-trend, while current and in demand emphasize the immediacy of the popularity, suggesting that it may not last forever.